11385306580 has 12 divisors (see below), whose sum is σ = 23909143860. Its totient is φ = 4554122624.

The previous prime is 11385306551. The next prime is 11385306599. The reversal of 11385306580 is 8560358311.

It can be written as a sum of positive squares in 2 ways, for example, as 8933274256 + 2452032324 = 94516^2 + 49518^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284632645 + ... + 284632684.

It is an arithmetic number, because the mean of its divisors is an integer number (1992428655).

Almost surely, 2^11385306580 is an apocalyptic number.

11385306580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11385306580 is an abundant number, since it is smaller than the sum of its proper divisors (12523837280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11385306580 is a wasteful number, since it uses less digits than its factorization.

11385306580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569265338 (or 569265336 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 11385306580 in words is "eleven billion, three hundred eighty-five million, three hundred six thousand, five hundred eighty".